mmc: Add quirk MMC_QUIRK_BROKEN_CACHE_FLUSH for Micron eMMC Q2J54A
authorBean Huo <beanhuo@micron.com>
Mon, 30 Oct 2023 22:48:09 +0000 (23:48 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 28 Nov 2023 17:20:01 +0000 (17:20 +0000)
commitbb94f1ad8cadb2b9c017da02ae4e941cee01a65a
treef131062a5b4fb3a1b0dab13af1a8a2896159f754
parent582208858304ffc382fa9d921c8b03cf1f31c1c0
mmc: Add quirk MMC_QUIRK_BROKEN_CACHE_FLUSH for Micron eMMC Q2J54A

commit ed9009ad300c0f15a3ecfe9613547b1962bde02c upstream.

Micron MTFC4GACAJCN eMMC supports cache but requires that flush cache
operation be allowed only after a write has occurred. Otherwise, the
cache flush command or subsequent commands will time out.

Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Rafael Beims <rafael.beims@toradex.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20231030224809.59245-1-beanhuo@iokpp.de
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/mmc/core/block.c
drivers/mmc/core/card.h
drivers/mmc/core/mmc.c
drivers/mmc/core/quirks.h
include/linux/mmc/card.h